Small details that make the difference in painting systems

In the world of industrial painting, excellence often depends on small design and construction details that determine the quality of the final result, energy efficiency, durability, and ease of maintenance.

Each phase of the painting process requires targeted engineering solutions capable of responding to the characteristics of the materials, production volumes, and the specific needs of each sector.
It is precisely in these details that Verona Impianti 2002 invests its experience: a technical heritage built over decades of work alongside manufacturing companies, which allows the design of high-performance, customized, and long-lasting systems.

In this article we explore some of these often-invisible but crucial construction features that make Verona Impianti 2002 systems a valuable choice for those seeking high-quality painting.

Pretreatment tunnel construction material

The pretreatment tunnel is the foundation of an efficient painting system: it is here that the part is washed, degreased, phosphated, or demineralized in preparation for the subsequent stages.
The choice of construction material for each stage of the tunnel is never random but the result of an in-depth technical analysis.

Each washing phase involves the use of specific chemical solutions with different concentrations, temperatures, and pH levels. Compatibility between these reagents and the tunnel construction material is crucial to ensure corrosion resistance, long-term stability, and the absence of contamination.

Verona Impianti first identifies the optimal pretreatment cycle based on the characteristics of the component and the required performance (adhesion, protection, gloss, etc.). Only then is the most suitable material selected for each tank and tunnel section, ensuring longevity, thermal efficiency, and reduced maintenance costs.

Result: greater process reliability, fewer plant downtimes, and consistently high cleaning quality over the long term.

Top-feeding spray ramps

In a pretreatment system, the arrangement of the spray ramps directly affects the quality and continuity of the wash.
In traditional tunnels, the ramps are fed from a lower manifold, which tends to retain residues and scale.
Verona Impianti proposes a different solution: top-feeding, with the manifold placed above the ramps.

This technical detail allows the ramps to empty completely at every shutdown of the wash cycle, taking advantage of gravity.
This prevents liquid stagnation and the formation of solid deposits that, over time, can clog nozzles, reduce flow rate, and compromise spray quality.

While also ensuring hygiene and a consistent spray pattern, the system reduces maintenance needs, extends ramp life, and maintains steady energy and water efficiency over time.

Result: consistently uniform, high-quality washing, no loss of performance, and fewer extraordinary cleaning interventions.

Air curtains for baking and curing ovens

Inside drying, baking or curing ovens, air management is one of the most critical aspects. The inlet and outlet openings, required for part transfer, are also the most sensitive points for heat loss.

For this reason, Verona Impianti installs calibrated air curtains - devices that create an invisible barrier at the oven openings.
This barrier limits the escape of hot air, reducing heat loss and keeping the internal temperature stable even during the most intensive production cycles.

Thanks to field experience, the system has been optimized to ensure the best balance between airflow speed and direction, avoiding turbulence that could alter the baking process.

Result: significant energy savings, reduced wear of oven components, and greater thermal uniformity, which benefits coating quality.

Ovens with top-down airflow

The curing or polymerization oven is one of the key elements of any painting system: in this phase, precise temperature control and air distribution are decisive for the quality of the final result.

Verona Impianti designs its ovens with a descending airflow, from top to bottom across the entire working chamber. This technical choice counteracts natural thermal stratification (hot air rises while cold air descends), ensuring uniform temperature at all heights of the oven. The controlled flow enables uniform curing of parts, avoiding differences in polymerization between upper and lower zones. Additionally, the configuration improves process stability and reduces the time needed to reach operating temperature, positively impacting cycle times, surface quality, and energy consumption.

Result: high-quality finishes, consistent thermal cycles, and optimal oven performance over time.

Dirt guard for overhead conveyor

In a painting system, the overhead conveyor is the link between all process stages, ensuring continuous movement of parts. However, due to its mechanical nature and uninterrupted operation, it can be a potential source of contamination.

To eliminate this risk, Verona Impianti installs a dirt-guard channel under the conveyor track: a metal profile that precisely follows the conveyor path and creates a physical separation between moving parts and the suspended pieces to be painted.

This system prevents oil, grease, wear particles, or dust from depositing on surfaces to be painted, thus protecting the purity and gloss of the paint film.
This solution is particularly appreciated in sectors where aesthetic quality is essential, such as designer furniture, high-end metalwork, or the automotive industry.

Moreover, the channel can be retrofitted on existing plants during revamping, significantly improving line quality and reliability.

Result: impeccable surfaces, reduced painting defects, and greater consistency in the finished product’s quality.

Experience and expertise: the most important detail

Behind every technical refinement there is a process of analysis, experimentation, and comparison born from the long experience of the Verona Impianti 2002 team.
The real difference lies in the ability to understand the customer's production context, priorities, volumes, and the specific materials and cycles they run.

Each system is tailor-made, aiming to deliver reliable, high-performance, and easily manageable machinery over time.
Whether it is a large-scale plant or a revamp of an existing line, Verona Impianti supports the customer at every stage:

• from preliminary technical consultation;
• to defining the optimal cycle;
• up to after-sales support and staff training.

Result: a relationship of trust built on concrete technical solutions intended to improve productivity and work quality every day.

In industrial painting systems, quality is never the result of chance. It is the product of thoughtful design, carefully selected materials, technical solutions refined over time, and an engineering vision focused on reliability.

Verona Impianti 2002 demonstrates every day that small details make the big difference: in finish quality, process stability, energy efficiency, and the longevity of systems. Each project starts from listening and experience, with the goal of offering reliable, high-performance solutions tailored to each customer's production needs.
Contact us to discover how we can assist you in developing your next system.